Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	35.00%	35.00%
State taxes, net of federal income tax benefit	0.50%	2.10%
Income tax contingency accruals and tax settlements	1.50%	2.10%
Unremitted earnings from foreign operations	(2.00%)	0.50%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	(0.80%)
Changes in estimates related to prior year tax provision	(1.30%)	(0.40%)
Effective Income Tax Rate Reconciliation Deduction For Foreign Investment Adjustments	(0.60%)
Non-deductible expenses	1.60%	1.00%
Valuation allowance for foreign operating loss carry-forwards	0.30%	1.00%
Research and development tax credit	(1.60%)	0.00%
Foreign rate differences	0.10%	(0.50%)
Valuation allowance for capital loss carry-forwards	(0.70%)	(1.90%)
Domestic production activities deduction	(2.20%)	(3.70%)
Effective income tax rate for income from continuing operations	29.80%	35.20%